Merge pull request #228 from MrMrRobat/patch-1

Fix RuntimeError: dictionary changed size

.travis.yml

@@ -14,7 +14,10 @@ before_install:
   # install DepHell
   # - curl https://raw.githubusercontent.com/dephell/dephell/master/install.py | /opt/python/3.6/bin/python
   # https://github.com/travis-ci/travis-ci/issues/8589
-  - /opt/python/3.7/bin/python install.py --branch=${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}
+  - >
+    /opt/python/3.7/bin/python install.py
+    --branch=${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}
+    --slug=${TRAVIS_PULL_REQUEST_SLUG:-dephell/dephell}
   - dephell inspect self
 install:
   - dephell venv create --env=$ENV --python="/opt/python/$TRAVIS_PYTHON_VERSION/bin/python" --level=DEBUG --traceback
@@ -39,7 +42,10 @@ matrix:
       language: generic
       env: ENV=pytest
       before_install:
-        - /usr/local/bin/python3 install.py --branch=${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}
+        - >
+          /usr/local/bin/python3 install.py
+          --branch=${TRAVIS_PULL_REQUEST_BRANCH:-$TRAVIS_BRANCH}
+          --slug=${TRAVIS_PULL_REQUEST_SLUG:-dephell/dephell}
         - dephell inspect self
       install:
         - dephell venv create --env=$ENV --python=/usr/local/bin/python3 --level=DEBUG --traceback

dephell/converters/pipfile.py

@@ -126,10 +126,9 @@ def dumps(self, reqs, project: RootDependency, content=None) -> str:
                 continue
 
             # clean packages from old packages
-            names = {req.name for req in reqs if is_dev is req.is_dev}
-            for name in doc[section]:
-                if name not in names:
-                    del doc[section][name]
+            req_names = {req.name for req in reqs if is_dev is req.is_dev}
+            for old_req in {name for name in doc[section] if name not in req_names}:
+                del doc[section][old_req]
 
         # write new packages
         for section, is_dev in [('packages', False), ('dev-packages', True)]:

install.py

@@ -11,6 +11,8 @@
 parser = ArgumentParser()
 parser.add_argument('--branch', help='install dephell from git from given branch')
 parser.add_argument('--version', help='install specified version')
+parser.add_argument('--slug', default='dephell/dephell',
+                    help='repository slug to use when installing from Github')
 args = parser.parse_args()
 
 
@@ -64,8 +66,8 @@ def get_data_dir() -> Path:
 
 print('install dephell')
 if args.branch:
-    name = 'git+https://github.com/dephell/dephell.git@{branch}#egg=dephell[full]'
-    name = name.format(branch=args.version or args.branch)
+    name = 'git+https://github.com/{slug}.git@{branch}#egg=dephell[full]'
+    name = name.format(slug=args.slug, branch=args.version or args.branch)
 elif args.version:
     name = 'dephell[full]=={version}'.format(version=args.version)
 else: